Alois koiiler



(No Model.)

A .KOHLER. MITER CLAMP.

No. 600,370. Patented Mar. 8,1898.

WITNESSES: l/V vg/vroa UNTED STATES PATENT OFFICE.

ALOIS KOHLER, OF NEW YORK, N. Y.

MITER-IVCLAM P.

SPECIFICATION forming part of Letters Patent No. 600,370, dated March 8, 1898. Application filed September 23. 1897. Serial No.652,739. (No model.)

To all whom, it may concern:

Be it known that I, ALOIS KOHLER, of New York city, in the county and State of New York, have invented a new and Improved Miter-Clamp, of which the following is a full, clear, and exact description.

My invention relates to an improvement in devices intended for clamping or holding the ends of two pieces of mitered molding or similar stock while being glued or otherwise socured together.

The invention consists, essentially, of a bar or frame having fixed thereon a clampingblock for holding one of the pieces to be joined and another clamping-block of similar construction sliding upon the frame and connected to a threaded bar, by which the two blocks may be forced one toward the other and the two pieces of molding firmly held in contact.

It also consists of the peculiar construction of the blocks by which the pieces of molding are held in the same.

The invention further consists of certain parts, which will be hereinafter described, and

particularly pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the device, showing two pieces of molding in place. Fig. 2 is an elevation of the same, parts being broken away and in section; and Fig. 3 is a section taken upon the line 3 3 of Fig. 1.

The device has a base consisting of a bar or frame B, upon one end of which is mounted one of the clamping-blocks D. This clamping-block is secured to the bar B by means of the bolt d or any other suitable means. The clamping-block D is of triangular shape and has the hypotenuse of the triangle lying at an angle of forty-five degrees with the length of the bar. This angle is of course the one which would be used where a forty-flve-degree miter was being joined. If the angle at the corner of the frame were other than ninety degrees, the angle of the face of the block would be correspondingly changed. Upon its under edge the block D has a projecting flange D and upon its upper surface the block has a lug or arm (1 extending upward and outward, so as to be opposed to the flange D Through this arm cl extends a set-screw d, by means of which the clamp may be set to hold moldings of difierent thicknesses.

The section of molding A which is to be held in this block D is placed upon the flange D and secured in place by a wedge F, which is placed upon the upper surface of the moldingand bears against the lower end of the set-screw cl. By slightly driving this wedge the molding may be'flrmly clamped and held in place, or, if desired, may be secured in place by screwing down the set-screw cl. This latter method may be employed where sliding of the wedge upon the molding would be apt to mar the same.

The complementary clamping-block D is formed exactly like the one described, except that on one side it has a socket adapted to receive one end of the threaded bar 0. This end of the bar is provided with a peripheral groove E, and a set-screw E, passing through the body of the block, enters said groove and secures the bar in place in the socket. Any other suitable method of connecting the bar to the block by which it may turn without being released or otherwise moved relatively thereto may be substituted for the one shown.

The clamping-block D is not secured to the top surface of the bar 13, but slides thereon. The threaded bar 0 passes through a threaded lug 13 upon the bar 13, and the threaded bar 0 is provided with a handle 0 or any other suitable means by which it may be turned.

In using my device the two sections A of the molding which are to be joined together are secured in the clamping-blocks D and D. The block D is then forced toward the block D, firmly pressing the ends of the molding together. In the drawings a dowel a, consisting of a small fin or blade, is shown as inserted in the joint. This is a common method of securing such joints.

The device is one which may be quickly applied to molding, and also it may be quickly released therefrom, and it enables the molding to be held more securely and with greater safety than with the ordinary devices. It is quickly operated, cheap, and efficient in its operation. When it is desired to release the device, it is only necessary to tap the wedges upon their ends,when the molding is released.

with faces at right angles to each other, said blocks having a flange on one edge extending beyond its face and an adjustable bar opposed thereto and adapted to secure a molding between them, one of said blocks beingslidable upon the frame toward and from the other block and in a line at an angle of forty-five degrees with the faces of both clamps, and positive means for moving said block toward and from the other.

2. In a miter-clamp the combination with the base-frame of a fixed block, and an adjustable block mounted to slide longitudinally of the base in a right line toward the fixed block, the two blocks having opposed clamping-faces inclined to each other to fit the angle of the work and having clampingflanges and opposed screw-clamps arranged to clamp transversely to the opposed clamping-faces of the blocks.

3. A miter-clamp, comprising a frame or base having clamping-blocks thereon, each block having a flange projecting beyond its face and adapted to engage one side of the mitered material, an arm projecting from the other side of the block, and a wedge supported therefrom and engaging the side of the mitered material opposite the flange, and means for forcing the blocks toward or away from each other in a direction perpendicular to the j oint-surfaces.

4. A miter-clamp, comprising a frame or base having clamping-blocks thereon, each block having a flange projecting beyond its face and adapted to engage one side of the mitered material, an arm projecting from the other side of the block, a set-screw in said arm, a wedge adjustable between the end of the set-screw and the side of the mitered material opposite the flange, and means for forcing said blocks toward or away from each other.

5. A miter-clamp, comprising a frame or base having clamping-blocks thereon, each block having a flange projecting beyond its face and adapted to engage one side of the mitered bar, an arm projecting from the other side of the block, a Wedge supported therefrom and engaging the other side of the mitered bar, a threaded bar working. in a nut upon the frame or base, and swivel-connected to one of the clamping-blocks, whereby said block maybe moved toward or away from the other block.

ALOIS KOHLER.

WVitnesses:

EVERARD B. MARSHALL, H. L. REYNOLDS. 

